The equation "a2 + b2 = c2" refers to the Pythagorean theorem. With this theorem, it is possible to find the length of any side of a right triangle when given the length of the other two sides.
Know MoreThe Pythagorean theorem states the sum of the squares of the two legs of a right triangle is equal to the square of the hypotenuse. In this equation, the twos after each term are not indicators of multiplication by two but of squaring each term. Normally, mathematicians write them as superscripts above the regular line of the text. This formula provides the basis for the distance formula, which is useful in determining the distance between two points on a graph when given their coordinates.
Learn more in TrigonometryTo find the equation of a line that is tangent to a curve, you must find a line with the same slope as that point of the curve. This can be done with a graphing calculator that can give the slope at a particular point or by hand using the derivative of a curve function.
Full Answer >The angular momentum formula is L = Iw, where the variable L represents the angular momentum, I is the moment of inertia, and w is the angular velocity. Angular momentum is a physics concept defined as the amount of rotation of an object in relation to its shape, speed and mass.
Full Answer >The equation "sin x squared" may refer to the equations sin(x^2) or (sin(x))^2, which is the same as sin2(x). Using trigonometric identities, sine-squared of x can be used in the equations sin2(x) = 1/2 - 1/2 cos(2x), sin2(x) + cos2(x) = 1 and (cos(x))^2 = 1 - 2sin2(x).
Full Answer >To solve the equation sin(cos(-1)), first it is necessary to solve for cos(-1) and then find the sine of that value. Assuming that (-1) is given in units of radians, this equation is equal to 0.514. If (-1) is in degrees, the equation is equal to 0.017.
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